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    Nitrophenyl ether herbicides
    151.
    发明授权
    Nitrophenyl ether herbicides 失效
    硝基苯醚除草剂

    公开(公告)号：US5214190A

    公开(公告)日：1993-05-25

    申请号：US964577

    申请日：1992-10-21

    Applicant: Wayne O. Johnson

    Inventor： Wayne O. Johnson

    IPC: A01N37/48 ,  C07C205/00 ,  C07C205/59

    CPC classification number: A01N37/48 ,  C07C201/12 ,  C07C213/08 ,  C07C231/02 ,  C07C327/32

    Abstract: Compounds of the formula: ##STR1## wherein X is hydrogen, halo, trihalomethyl, alkyl, nitro, or cyano; X.sup.1 is hydrogen, halo, or trihalomethyl; X.sup.2 is trihalomethyl or halo; Y is O, S, NH or NR.sup.1 ; R.sup.1 and R.sup.2 are the same or different radicals selected from hydrogen, alkyl, or mononuclear aralkyl; n is 1 to 5, and Z is carboxy, amino, mono- and dialkyl amino and when Z is carboxy, the agronomically acceptable salts, esters, thioesters and amides thereof, and compositions containing these compounds exhibit herbicidal activity.

    Abstract translation: 下式的化合物：其中X是氢，卤素，三卤甲基，烷基，硝基或氰基; X1是氢，卤素或三卤甲基; X2是三卤代甲基或卤素; Y是O，S，NH或NR1; R1和R2是相同或不同的选自氢，烷基或单核芳烷基的基团; n为1至5，Z为羧基，氨基，单烷基和二烷基氨基，当Z为羧基时，其农艺学上可接受的盐，酯，硫酯和酰胺，以及含有这些化合物的组合物显示除草活性。

    Method of preparing fluoro, nitro, and fluoronitroalkyl difluoroformals
    152.
    发明授权
    Method of preparing fluoro, nitro, and fluoronitroalkyl difluoroformals 失效
    制备氟，硝基和氟代硝基烷基二氟甲酸酯的方法

    公开(公告)号：US5196599A

    公开(公告)日：1993-03-23

    申请号：US256463

    申请日：1981-03-30

    Applicant: William H. Gilligan ,  Michael E. Sitzmann

    Inventor： William H. Gilligan ,  Michael E. Sitzmann

    IPC: C07C41/48 ,  C07C43/313 ,  C07C205/29

    CPC classification number: C07C41/48 ,  C07C201/12

    Abstract: A method of preparing difluoroformals of the formula(RCH.sub.2 O).sub.2 CF.sub.2,wherein R is --C(NO.sub.2).sub.3, --CF(NO.sub.2).sub.2, --CF.sub.2 (NO.su), --C(NO.sub.2).sub.2 CH.sub.3, or a fluoroalkyl group such as --CF.sub.3 or --CF.sub.2 CF.sub.3, by reacting the corresponding dichloroformals with hydrogen fluoride in pyridine. These difluoroformals are useful as energetic explosive and propellant ingredients.

    Abstract translation: 一种制备式（RCH 2 O）2 CF2的二氟甲酰基的方法，其中R是-C（NO 2）3，-CF（NO 2）2，-CF 2（NO 2）， - C（NO 2）2 CH 3或氟烷基， CF 3或-CF 2 CF 3，通过使相应的二氯形式与吡啶中的氟化氢反应。 这些二氟异构体可用作高能爆炸和推进剂成分。

    Process for the preparation of dibromonitro-alcohols and blends with dibromonitro-alcohols
    153.
    发明授权
    Process for the preparation of dibromonitro-alcohols and blends with dibromonitro-alcohols 失效
    二溴酮醇与双酚A醇的混合物的制备方法

    公开(公告)号：US5144087A

    公开(公告)日：1992-09-01

    申请号：US777088

    申请日：1991-10-16

    Applicant: James E. Williams ,  Scott Thornburgh

    Inventor： James E. Williams ,  Scott Thornburgh

    IPC: C07C201/12 ,  C07C205/26

    CPC classification number: C07C201/12

    Abstract: A process for preparing dibromonitro-alcohols, and mixtures thereof with bromonitro-alcohols, is disclosed in which dibromonitromethane, and optionally bromonitroethane, is reacted with a C.sub.1 -C.sub.3 aldehyde in aqueous solution at an acid pH, preferably between about 4.0 and about 7.0. An aqueous solution of the aldehyde is prepared and the pH adjusted to the desired acid range by addition of sodium bicarbonate, and the dibromonitromethane, which may include bromonitromethane, is added thereto. The dibromonitro-alcohol product is isolated as a separate phase from the reaction mixture.

    Abstract translation: 公开了一种制备二溴硝基醇及其与溴硝基醇的混合物的方法，其中二溴硝基甲烷和任选的溴硝基乙烷在酸性pH下，优选在约4.0和约7.0之间，与C1-C3醛在水溶液中反应。 制备醛的水溶液，并通过加入碳酸氢钠将pH调节至所需的酸范围，并向其中加入可包括溴硝基甲烷的二溴硝基甲烷。 从反应混合物中分离出作为分离相的二溴硝基醇产物。

    Process for the preparation of alkyl nitrobenzoates
    155.
    发明授权
    Process for the preparation of alkyl nitrobenzoates 失效
    制备硝基苯甲酸烷基酯的方法

    公开(公告)号：US5087725A

    公开(公告)日：1992-02-11

    申请号：US513661

    申请日：1990-04-24

    Applicant: Theodor Papenfuhs ,  Reiner Hess ,  Andreas Fuss

    Inventor： Theodor Papenfuhs ,  Reiner Hess ,  Andreas Fuss

    IPC: B01J31/02 ,  C07B61/00 ,  C07C201/12 ,  C07C205/57

    CPC classification number: C07C201/12

    Abstract: A process for the preparation of alkyl (C.sub.1 -C.sub.3) nitrobenzoates by reacting the nitrobenzoic acid to be esterified with an excess of about 300 to about 600 mol % of an alkanol (C.sub.1 -C.sub.3) in a solvent which is inert towards the starting compounds and the reaction product in the presence of a polyfluoroalkanesulfonic acid of the general formula (1)Y(C.sub.n F.sub.2n)SO.sub.3 H (1)in which Y is a hydrogen or fluorine atom, with the proviso that, if Y is H, this hydrogen atom is in the .beta.-position relative to the sulfo group, or the hydrate thereof as catalyst in an amount of about 0.1 to about 20 mol %, relative to the nitrobenzoic acid used, at temperatures from about 60.degree. to about 120.degree. C.

    Abstract translation: 通过在对起始化合物是惰性的溶剂中使待酯化的硝基苯甲酸与过量约300至约600mol％的链烷醇（C1-C3）反应制备烷基（C 1 -C 3）硝基苯甲酸酯的方法 和其中Y为氢或氟原子的通式（1）Y（C n F 2n）SO 3 H（1）的多氟烷基磺酸存在下的反应产物，条件是如果Y为H，则该氢原子为 相对于所使用的硝基苯甲酸，在相对于磺基的β-位或其水合物作为催化剂的量为约0.1至约20mol％，温度为约60℃至约120℃。

    Production of hexanitrostilbene (HNS)
    157.
    发明授权
    Production of hexanitrostilbene (HNS) 失效
    己烷二甲苯（HNS）的生产

    公开(公告)号：US5023386A

    公开(公告)日：1991-06-11

    申请号：US457681

    申请日：1990-01-04

    Applicant: Peter Golding ,  Asoka M. Jayaweera-Bandara ,  Henry Duffin

    Inventor： Peter Golding ,  Asoka M. Jayaweera-Bandara ,  Henry Duffin

    IPC: C07C205/06

    CPC classification number: C07C201/12

    Abstract: A relatively fast process for producing HNS from trinitrotoluene (TNT) in high yield consists of oxidizing TNT with an oxidizing transition metal compound within a polar aprotic solvent having a weak base, such as an alkali metal carboxylate, dissolved therein. The amount of transition metal compound used is typically at least one mole per mole of TNT. An especially preferred transition metal compound for use in the present process is cupric chloride.

    Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diaminoresorcinol
    158.
    发明授权
    Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diaminoresorcinol 失效
    2-卤代-4,6-二硝基间苯二酚和4,6-二氨基间苯二酚的水合成

    公开(公告)号：US5001279A

    公开(公告)日：1991-03-19

    申请号：US438839

    申请日：1989-11-17

    Applicant: Tyze-Kuan T. Yin

    Inventor： Tyze-Kuan T. Yin

    IPC: C07C201/12 ,  C07C205/26 ,  C07C213/02 ,  C07C215/80

    CPC classification number: C07C201/12

    Abstract: The displacement of halogen from a 1,2,3-trihalo-4,6-dinitroresorcinol can be carried out in an aqueous medium using alkali metal hydroxide to form 2-halo-4,6,-dinitroresorcinol. The product is a useful intermediate in the synthesis of 4,6-diaminoresorcinol, which is a monomer for polybenzoxazole polymers. The process from part of a useful aqueous process for synthesizing 4,6-diaminoresorcinol.

    Abstract translation: 卤素从1,2,3-三卤代-4,6-二硝基间苯二酚的置换可以在含水介质中使用碱金属氢氧化物进行，形成2-卤代-4,6-二硝基间苯二酚。 该产物是合成4,6-二氨基间苯二酚的有用中间体，它是聚苯并恶唑聚合物的单体。 用于合成4,6-二氨基间苯二酚的部分有用的水性方法的方法。

    Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloroanisole
    159.
    发明授权
    Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloroanisole 失效
    从3,5-二氯苯甲醚制备1,3,5-三氨基-2,4,6-三硝基苯

    公开(公告)号：US4997987A

    公开(公告)日：1991-03-05

    申请号：US534896

    申请日：1990-06-08

    Applicant: Donald G. Ott ,  Theodore M. Benziger

    Inventor： Donald G. Ott ,  Theodore M. Benziger

    IPC: C07C201/08 ,  C07C205/12 ,  C07C205/37 ,  C07C209/10

    CPC classification number: C07C209/10 ,  C07C201/08 ,  C07C201/12

    Abstract: Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) from 3,5-dichloroanisole. Nitration of 3,5-dichloroanisole under relatively mild conditions gave 3,5-dichloro-2,4,6-trinitroanisole in high yield and purity. Ammonolysis of this latter compound gave the desired TATB. Another route to TATB was through the treatment of the 3,5-dichloro-2,4,6-trinitroanisole with thionyl chloride and dimethylformamide to yield 1,3,5-trichloro-2,4,6-trinitrobenzene. Ammonolysis of this product produced TATB.

    Abstract translation: 由3,5-二氯苯甲醚制备1,3,5-三氨基-2,4,6-三硝基苯（TATB）。 在相对温和的条件下硝化3,5-二氯苯甲醚，得到3,5-二氯-2,4,6-三硝基苯甲醚，产率高，纯度高。 该后一种化合物的溶解得到所需的TATB。 通过用亚硫酰氯和二甲基甲酰胺处理3,5-二氯-2,4,6-三硝基苯甲醚，得到1,3,5-三氯-2,4,6-三硝基苯，通过TATB的另一条路线。 该产品的解淀粉生成TATB。

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